core/homeassistant/components/trace/models.py

175 lines
5.5 KiB
Python

"""Containers for a script or automation trace."""
from __future__ import annotations
import abc
from collections import deque
import datetime as dt
from typing import Any
from homeassistant.core import Context
from homeassistant.helpers.trace import (
TraceElement,
script_execution_get,
trace_id_get,
trace_id_set,
trace_set_child_id,
)
import homeassistant.util.dt as dt_util
from homeassistant.util.limited_size_dict import LimitedSizeDict
import homeassistant.util.uuid as uuid_util
type TraceData = dict[str, LimitedSizeDict[str, BaseTrace]]
class BaseTrace(abc.ABC):
"""Base container for a script or automation trace."""
context: Context
key: str
run_id: str
def as_dict(self) -> dict[str, Any]:
"""Return an dictionary version of this ActionTrace for saving."""
return {
"extended_dict": self.as_extended_dict(),
"short_dict": self.as_short_dict(),
}
@abc.abstractmethod
def as_extended_dict(self) -> dict[str, Any]:
"""Return an extended dictionary version of this ActionTrace."""
@abc.abstractmethod
def as_short_dict(self) -> dict[str, Any]:
"""Return a brief dictionary version of this ActionTrace."""
class ActionTrace(BaseTrace):
"""Base container for a script or automation trace."""
_domain: str | None = None
def __init__(
self,
item_id: str | None,
config: dict[str, Any] | None,
blueprint_inputs: dict[str, Any] | None,
context: Context,
) -> None:
"""Container for script trace."""
self._trace: dict[str, deque[TraceElement]] | None = None
self._config = config
self._blueprint_inputs = blueprint_inputs
self.context: Context = context
self._error: Exception | None = None
self._state: str = "running"
self._script_execution: str | None = None
self.run_id: str = uuid_util.random_uuid_hex()
self._timestamp_finish: dt.datetime | None = None
self._timestamp_start: dt.datetime = dt_util.utcnow()
self.key = f"{self._domain}.{item_id}"
self._dict: dict[str, Any] | None = None
self._short_dict: dict[str, Any] | None = None
if trace_id_get():
trace_set_child_id(self.key, self.run_id)
trace_id_set((self.key, self.run_id))
def set_trace(self, trace: dict[str, deque[TraceElement]] | None) -> None:
"""Set action trace."""
self._trace = trace
def set_error(self, ex: Exception) -> None:
"""Set error."""
self._error = ex
def finished(self) -> None:
"""Set finish time."""
self._timestamp_finish = dt_util.utcnow()
self._state = "stopped"
self._script_execution = script_execution_get()
def as_extended_dict(self) -> dict[str, Any]:
"""Return an extended dictionary version of this ActionTrace."""
if self._dict:
return self._dict
result = dict(self.as_short_dict())
traces = {}
if self._trace:
for key, trace_list in self._trace.items():
traces[key] = [item.as_dict() for item in trace_list]
result.update(
{
"trace": traces,
"config": self._config,
"blueprint_inputs": self._blueprint_inputs,
"context": self.context,
}
)
if self._state == "stopped":
# Execution has stopped, save the result
self._dict = result
return result
def as_short_dict(self) -> dict[str, Any]:
"""Return a brief dictionary version of this ActionTrace."""
if self._short_dict:
return self._short_dict
last_step = None
if self._trace:
last_step = list(self._trace)[-1]
domain, item_id = self.key.split(".", 1)
result = {
"last_step": last_step,
"run_id": self.run_id,
"state": self._state,
"script_execution": self._script_execution,
"timestamp": {
"start": self._timestamp_start,
"finish": self._timestamp_finish,
},
"domain": domain,
"item_id": item_id,
}
if self._error is not None:
result["error"] = str(self._error)
if self._state == "stopped":
# Execution has stopped, save the result
self._short_dict = result
return result
class RestoredTrace(BaseTrace):
"""Container for a restored script or automation trace."""
def __init__(self, data: dict[str, Any]) -> None:
"""Restore from dict."""
extended_dict = data["extended_dict"]
short_dict = data["short_dict"]
context = Context(
user_id=extended_dict["context"]["user_id"],
parent_id=extended_dict["context"]["parent_id"],
id=extended_dict["context"]["id"],
)
self.context = context
self.key = f"{extended_dict['domain']}.{extended_dict['item_id']}"
self.run_id = extended_dict["run_id"]
self._dict = extended_dict
self._short_dict = short_dict
def as_extended_dict(self) -> dict[str, Any]:
"""Return an extended dictionary version of this RestoredTrace."""
return self._dict # type: ignore[no-any-return]
def as_short_dict(self) -> dict[str, Any]:
"""Return a brief dictionary version of this RestoredTrace."""
return self._short_dict # type: ignore[no-any-return]